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- W2732946568 abstract "Dynamics of a system generally depends on its initial state and how the system is driven, but in many-body systems the memory is usually averaged out during evolution. Here, interacting quantum systems without external relaxations are shown to retain long-time memory effects in steady states. To identify memory effects, we first show quasi-steady state currents form in finite, isolated Bose and Fermi Hubbard models driven by interaction imbalance and they become steady-state currents in the thermodynamic limit. By comparing the steady state currents from different initial states or ramping rates of the imbalance, long-time memory effects can be quantified. While the memory effects of initial states are more ubiquitous, the memory effects of switching protocols are mostly visible in interaction-induced transport in lattices. Our simulations suggest the systems enter a regime governed by a generalized Fick's law and memory effects lead to initial-state dependent diffusion coefficients. We also identify conditions for enhancing memory effects and discuss possible experimental implications." @default.
- W2732946568 created "2017-07-14" @default.
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- W2732946568 date "2017-06-01" @default.
- W2732946568 modified "2023-09-27" @default.
- W2732946568 title "Quantify steady-state memory effects from interaction-induced transport in quantum systems" @default.
- W2732946568 hasPublicationYear "2017" @default.
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